--- title: "VAPolyMk4 - Reviews, Revenue and Downloads in United States | Apple App Store" description: "VAPolyMk4 is bi-timbral polyphonic synthesizer, which features output morphing, classic ring modulator and global offset parameter control. Each synthesizer consists of three oscillators, resonant lo" --- # VAPolyMk4 — United States > Polyphonic Synthesizer ![VAPolyMk4 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/2e/a8/88/2ea88810-a240-5232-8f91-947cc080b687/AppIcon-1x_U007epad-0-1-85-220-0.png/434x0w.png) **Developer:** [Ryo Togawa](https://apptail.io/developer/ryo-togawa-Ube) **Category:** Music **Rating:** 5.0/5 (2 ratings) **Price:** $14.99 **Bundle ID:** com.rtmusicsoftware.VAPolyMk4 **Store:** Apple App Store **Country:** United States **Version:** 1.0.1 (released 2025-12-17) **Original Release:** 2025-10-22 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6753038075) **AppTail Page:** [https://apptail.io/app/vapolymk4-aGdx/united-states](https://apptail.io/app/vapolymk4-aGdx/united-states) ## VAPolyMk4 Description VAPolyMk4 is bi-timbral polyphonic synthesizer, which features output morphing, classic ring modulator and global offset parameter control. Each synthesizer consists of three oscillators, resonant low pass and hight pass filter, amplifier, three envelope generators and two LFO. Two synthesizers can be configured as layer or split. VAPolyMk4 operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features Bi-timbral Polyphonic Synthesizer. Output morphing. Classic Ring Modulator. Global Offset Parameter Control. Three oscillators featuring hard sync and through zero FM. Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and piano roll sequencer. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Audio Unit Extension (AUv3). Support MIDI 2.0. Support Foot Pedal and Per Note Control. Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Full Factory Preset: 230, Synth CH: 160, Effect: 40 Improvements Support MIDI Foot Pedal (CC#11, CC#64) Support MIDI2.0 Per Note Control Messages MIDI CC Settings are saved. It will be recovered when the app launched in the next time. UI Color can be selected from black, navy or gray. System Requirements iOS 17.0 or later Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. if sound is distorted when using a device with less CPU power, reduce number of voices. AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension. ## VAPolyMk4 Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/97/05/d7/9705d71f-7d8a-3e07-8745-71ace8387724/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.37.35.png/2796x1290.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/82/99/92/82999233-1a82-3c7d-0810-965075de018b/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.38.02.png/2796x1290.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4e/d5/c4/4ed5c4c0-b7ac-099a-fd0a-6e48ddb22e75/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.38.14.png/2796x1290.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/37/14/36/3714365b-136a-b196-528b-c4f7d0625045/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.38.07.png/2796x1290.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b7/ea/4f/b7ea4fd0-9d74-47f2-6ab2-0c345d7cf090/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.38.18.png/2796x1290.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/72/6a/b9/726ab9dd-4769-4428-be61-ac7381d32815/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.38.22.png/2796x1290.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/69/87/51/698751a0-5db6-bf27-589a-08cce26f0496/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.38.51.png/2796x1290.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/23/f6/7c/23f67c0e-5f72-67c8-15cb-1e192cd1116f/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.39.02.png/2796x1290.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/67/e8/05/67e8058e-2ed1-fb23-f337-33370587f283/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.39.07.png/2796x1290.png) - [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8f/24/9a/8f249a97-d743-c31a-d06b-bf2fd96374e5/Simulator_Screenshot_-_iPhone_15_Pro_Max_-_2025-09-24_at_16.39.13.png/2796x1290.png) ## VAPolyMk4 Rating Breakdown in United States - 5 stars: 2 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## VAPolyMk4 Reviews in United States ### ***** "Great as are all the rest!" I love all of this creator’s synths. They ARE all different with different features, similar interface but I especially love the synths this person makes that have generative presets. This one does, and I believe four others that I’ve purchased so far. Keep these amazing synths coming! -- octogator, 2026-05-24 [View all VAPolyMk4 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## VAPolyMk4 Discovered Keywords - vapolymk4 ## VAPolyMk4 Available In - [United States](https://apptail.io/app/vapolymk4-aGdx/united-states) - [Thailand](https://apptail.io/app/vapolymk4-aGdx/thailand) - [Mexico](https://apptail.io/app/vapolymk4-aGdx/mexico) - [Philippines](https://apptail.io/app/vapolymk4-aGdx/philippines) - [Brazil](https://apptail.io/app/vapolymk4-aGdx/brazil) - [Tunisia](https://apptail.io/app/vapolymk4-aGdx/tunisia) - [Russia](https://apptail.io/app/vapolymk4-aGdx/russia) - [Canada](https://apptail.io/app/vapolymk4-aGdx/canada) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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